createBuilder gives you the CreateBuilder which gives you a CreateObject. (replace with update for the other one).
+1 for CreateObject/UpdateObject as the names of the domain classes and CreateBuilder/UpdateBuilder for the builder names.
I personally also think that Domain.createWith(...) reads nicely, but for consistency with the many instances of Domain.builder() I would probably vote for Domain.createBuilder(...) and Domain.updateBuilder(...) here.
ap